2.4.28 Oops in fs/locks.c:time_out_leases()

From: Frank van Maarseveen
Date: Tue Jan 18 2005 - 07:35:47 EST


got an Oops the same time for 9 days, at the same EIP:

ksymoops 2.4.9 on i686 2.4.28-x97. Options used
-V (default)
-k /proc/ksyms (default)
-l /proc/modules (default)
-o /lib/modules/2.4.28-x97/ (default)
-m /boot/System.map-2.4.28-x97 (default)

kernel: <1>Unable to handle kernel NULL pointer dereference at virtual address 0000003c
kernel: c0153cb8
kernel: *pde = 00000000
kernel: Oops: 0000
kernel: CPU: 0
kernel: EIP: 0010:[time_out_leases+24/128] Not tainted
kernel: EFLAGS: 00010202
kernel: eax: c1b42a14 ebx: 00000010 ecx: 00000000 edx: c349139c
kernel: esi: c1b42ad0 edi: c06f6000 ebp: c06f7f0c esp: c06f7f04
kernel: ds: 0018 es: 0018 ss: 0018
kernel: Process find (pid: 17476, stackpage=c06f7000)
kernel: Stack: c1b42a14 00018801 c06f7f38 c0153d79 c1b42a14 00000000 00000000 c06f7f38
kernel: 00000000 c349139c ffffffff 00018801 c1b42a14 c06f7f64 c014d8c7 c1b42a14
kernel: 00018801 00000000 00000000 00000004 c2f51898 00018800 c160f000 080665cb
kernel: Call Trace: [__get_lease+89/640] [open_namei+487/1376] [filp_open+47/80] [sys_open+61/160] [system_call+51/64]
kernel: Code: f6 43 2c 20 74 23 f6 43 2d 10 74 1d 8b 53 50 85 d2 75 1d 89
Using defaults from ksymoops -t elf32-i386 -a i386


>>eax; c1b42a14 <_end+164147c/4347ac8>
>>edx; c349139c <_end+2f8fe04/4347ac8>
>>esi; c1b42ad0 <_end+1641538/4347ac8>
>>edi; c06f6000 <_end+1f4a68/4347ac8>
>>ebp; c06f7f0c <_end+1f6974/4347ac8>
>>esp; c06f7f04 <_end+1f696c/4347ac8>

Code; 00000000 Before first symbol
00000000 <_EIP>:
Code; 00000000 Before first symbol
0: f6 43 2c 20 testb $0x20,0x2c(%ebx)
Code; 00000004 Before first symbol
4: 74 23 je 29 <_EIP+0x29>
Code; 00000006 Before first symbol
6: f6 43 2d 10 testb $0x10,0x2d(%ebx)
Code; 0000000a Before first symbol
a: 74 1d je 29 <_EIP+0x29>
Code; 0000000c Before first symbol
c: 8b 53 50 mov 0x50(%ebx),%edx
Code; 0000000f Before first symbol
f: 85 d2 test %edx,%edx
Code; 00000011 Before first symbol
11: 75 1d jne 30 <_EIP+0x30>
Code; 00000013 Before first symbol
13: 89 00 mov %eax,(%eax)


Details:
- compiled with gcc version 3.3.4 (Debian 1:3.3.4-3)
- only ext3 and NFSv3 mounts (and automounter).
- The "find" causing the oops appears to be started from cron.daily
and only touches local filesystems.
- SMP kernel running on UP (pentium II)

--
Frank
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/